Alert archive / Iowa / Flash Flood Warnings in 2013
Flash Flood Warning 13, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Jun 21, 2013, 7:11 AM CDT for Allamakee County, Winneshiek County, Iowa; Houston County, Minnesota; Crawford County, Wisconsin. It was in force for 4 hr. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 21, 2013, 7:11 AM CDT (12:11 UTC)
- Expired
- Jun 21, 2013, 11:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Flood severity
- None
Counties Allamakee County, IA, Winneshiek County, IA, Houston County, MN, Crawford County, WI
The radar
The La Crosse radar (KARX), 64 km from the middle of the area, began a volume at 12:14 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 21, 7:35 AM CDT | HEAVY RAIN 1.36 | Mount Zion, WI | STORM TOTAL. |
| Jun 21, 7:45 AM CDT | FLASH FLOOD | Decorah, IA | FLASH FLOODING FROM QUICK RUNOFF AROUND COUNTY |
| Jun 21, 8:13 AM CDT | HEAVY RAIN 3 | 1 N Decorah, IA | REPORTED BY KCWI DES MOINES VIEWER |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 0.2 hours before the alert went out and 191 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1347 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 1145 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.8
The text
As transmitted, in the capitals the NWS used until 2016.
436
WGUS53 KARX 211211
FFWARX
IAC005-191-MNC055-WIC023-211600-
/O.NEW.KARX.FF.W.0013.130621T1211Z-130621T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
711 AM CDT FRI JUN 21 2013
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
ALLAMAKEE COUNTY IN NORTHEAST IOWA...
CRAWFORD COUNTY IN SOUTHWEST WISCONSIN...
SOUTHERN HOUSTON COUNTY IN SOUTHEAST MINNESOTA...
WINNESHIEK COUNTY IN NORTHEAST IOWA...
* UNTIL 1100 AM CDT
* TORRENTIAL RAIN HAS BEEN FALLING WITH A LINE OF THUNDERSTORMS
ACROSS THE AREA. REPORTS OF 2 TO 3 INCHES OF RAIN HAVE BEEN
RECEIVED.
* AREA CREEKS AND STREAMS ARE LIKELY RISING FAST. ADDITIONAL RAIN
IS EXPECTED THROUGH THE MORNING SO FLOODING COULD OCCUR RATHER
QUICKLY.
NEVER DRIVE THROUGH FLOODED ROADS. BE CAREFUL IN DRAINAGE AREAS
WHERE WATER LEVELS COULD COME UP QUICKLY THIS MORNING.
LAT...LON 4308 9119 4308 9207 4350 9208 4350 9169
4361 9173 4361 9127 4343 9121 4342 9067
4318 9067 4312 9075 4307 9087 4307 9093
4299 9106 4299 9115
$$
SHEA2 follow-up statements
169
WGUS73 KARX 211325
FFSARX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
825 AM CDT FRI JUN 21 2013
IAC005-191-MNC055-WIC023-211600-
/O.CON.KARX.FF.W.0013.000000T0000Z-130621T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLAMAKEE IA-WINNESHIEK IA-HOUSTON MN-CRAWFORD WI-
825 AM CDT FRI JUN 21 2013
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CRAWFORD...SOUTHERN
HOUSTON...WINNESHIEK AND ALLAMAKEE COUNTIES UNTIL 1100 AM CDT...
HEAVY RAINFALL RATES FROM A FEW HOURS AGO CAUSED SOME LOCALIZED
FLASH FLOODING AND QUICK RUNOFF IN THE HILLY TERRAIN OVER PARTS OF
NORTHEAST IOWA INTO NEIGHBORING MINNESOTA AND WISCONSIN. THERE WAS A
LOT OF PONDING IN FIELDS AS WELL.
MOST OF THE HEAVIER RAIN SHIFT SOUTH OF THE WARNED AREA ABOUT AN
HOUR AGO BUT ADDITIONAL STORMS WERE FORMING BACK TO THE WEST...
ALONG THE MINNESOTA-IOWA BORDER...THAT COULD BRING SOME ADDITIONAL
RAIN AND MORE FLOODING.
LAT...LON 4308 9119 4308 9207 4350 9208 4350 9169
4361 9173 4361 9127 4343 9121 4342 9067
4318 9067 4312 9075 4307 9087 4307 9093
4299 9106 4299 9115
$$
SHEA824
WGUS73 KARX 211506
FFSARX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1006 AM CDT FRI JUN 21 2013
IAC005-191-MNC055-WIC023-211518-
/O.CAN.KARX.FF.W.0013.000000T0000Z-130621T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLAMAKEE IA-WINNESHIEK IA-HOUSTON MN-CRAWFORD WI-
1006 AM CDT FRI JUN 21 2013
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR CRAWFORD...SOUTHERN
HOUSTON...WINNESHIEK AND ALLAMAKEE COUNTIES IS CANCELLED...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA.
STREAMS AND CREEKS MAY STILL BE RUNNING HIGH FOR THE NEXT HOUR OR
SO...BUT ARE EXPECTED TO RECEDE THEREAFTER. IF FLOODING HAS BEEN
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 4308 9119 4308 9207 4350 9208 4350 9169
4361 9173 4361 9127 4343 9121 4342 9067
4318 9067 4312 9075 4307 9087 4307 9093
4299 9106 4299 9115
$$
SCHMIDTThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 8:17 AM CDT | Areal Flood Advisory | ARX | Clayton, Fayette | 2 hr |
| Jun 21, 8:31 AM CDT | Flash Flood Warning | ARX | Clayton, Fayette | 3 hr |
| Jun 21, 2:23 PM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 22 hr |
| Jun 21, 5:06 AM CDT | Severe Thunderstorm Warning | ARX | Wabasha | 54 min |
| Jun 21, 6:36 AM CDT | Areal Flood Advisory | ARX | La Crosse | 54 min |
| Jun 21, 7:37 AM CDT | Areal Flood Advisory | ARX | La Crosse | 3 hr |
| Jun 21, 7:38 AM CDT | Severe Thunderstorm Warning | ARX | Crawford, Grant, Richland | 52 min |
| Jun 21, 8:03 AM CDT | Severe Thunderstorm Warning | ARX | Grant | 42 min |
| Jun 21, 10:26 AM CDT | River Flood Warning | ARX | Jackson | 3 days |
| Jun 21, 10:26 AM CDT | River Flood Warning | ARX | La Crosse, Trempealeau | 5 days |
| Jun 21, 10:26 AM CDT | River Flood Warning | ARX | Crawford, Vernon | 47 hr |
| Jun 21, 2:48 PM CDT | River Flood Warning | ARX | Crawford | 7 days |
Nearby
Flash Flood Warnings in Iowa, 2013Flash Flood Warnings in Minnesota, 2013Flash Flood Warnings in Wisconsin, 2013Every flash flood warning in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.